JPS63116Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in guide rails in carts used, for example, in aviation aircraft to serve food and beverages to passengers.

Food and beverages served to passengers onboard an aircraft are generally prepared in advance near the airport, loaded onto carts, and then loaded onto the aircraft, where they are stored inside the aircraft using an air circulation system installed in a hangar. The cart is designed to circulate air at a predetermined temperature within the cart to keep the food and drink stored in the cart at an appropriate temperature, and to serve food and drink at an appropriate temperature to passengers during service. However, in order to effectively utilize the interior space of such carts and to serve passengers efficiently, food and drinks for each person are placed on trays, etc., and these trays are placed on both sides of the cart. The guide rails are arranged and housed on the rail portions of guide rails that are densely arranged at predetermined intervals. Therefore, if a guide rail having a rail portion that is approximately equal to the entire width of the side wall is provided, even if air at a predetermined temperature is blown into the cart by an air circulation device, this air will not be distributed evenly within the cart, resulting in a temperature difference. It was not possible to keep all the stored food and drinks at an appropriate temperature.

Therefore, as shown in FIG. 4, the end plate 20 (or one door) of the cart 15 has an air intake port 21 and an air discharge port 22, extending from the top guide rail 16 to the bottom guide rail 16. Then,
At least the rail portion 17 of the guide rail 16 for forming a plurality of air flow paths in the same part of all the guide rails 16, 16, with appropriate intervals.
A cart is provided with a notch 18 in which a predetermined length of a protrusion such as a tray is missing, and is configured to circulate air by utilizing a gap between a side end of a tray or the like (not shown) arranged in an organized manner and a side wall 19. 15 is provided, but even in this case, the blown air is
Notch 1 formed in a straight line with low air resistance
8, 18, ..., so the notch 1
There was a temperature difference between the area around 8 and the other parts, which caused the problem that the food and drinks stored in the room were not kept uniformly warm.

The present invention was developed in view of the above-mentioned circumstances, and is equipped with a multi-stage guide rail for organizing and storing food and drinks placed on a tray, etc., and has an air intake port and an air discharge port, and is designed to maintain a predetermined temperature. In a cart configured to keep stored food and drink at a predetermined temperature by circulating air inside, the air flow is provided at appropriate intervals at least at the protruding portions such as the rail portions of each guide rail. By providing notches to form channels and arranging each guide rail so that these notches are located alternately, the air blown from the air intake port is organized and stored inside the cart. The purpose of the present invention is to propose a guide rail for a cart that makes it possible to keep all stored food and drink almost uniformly warm by circulating the food and drink while detouring over the food and drink.

The present invention will now be described with reference to the embodiments shown in the drawings.

1 and 2, 1 is a cart, 2 is the main body of the cart 1, and an air intake hole 4 is provided at the top of the end plate 3 (or one door) of the cart main body 2.
However, an air outlet 5 is provided at the bottom, and by connecting the air intake 4 and the air outlet 5 to an air circulation device (not shown), air at a predetermined temperature can be supplied to the cart body 2. It is configured to circulate. 6, 6... is the cart body 2
A plurality of guide rails are arranged parallel to each other at predetermined intervals on the inner side wall 7, and these guide rails 6 are constructed as follows. That is, 8 is a rail portion for supporting and holding the lower surface of the side end of the tray 11, and this rail portion 8 has a mounting hole 9 for attaching the guide rail 6 to the side wall 7.
The support piece 9 is provided in a protruding manner substantially perpendicular to the support piece 9 having a shape. Reference numeral 10 denotes a regulating piece provided to prevent the tray from jumping up, and this regulating piece 10 is provided on the upper end edge of the supporting piece 9 in parallel with the rail portion 8 so as to protrude substantially perpendicularly to the supporting piece 9. . 12, 12... form an air flow path between the side end of the tray 11 and the side wall 7, so the rail portion 8 and the regulating piece 10 at a predetermined portion of the guide rail 6 with an appropriate interval are made to a predetermined length. These notches 12, 12...
are formed in a positional relationship such that the notches 7, 7, . . . of the guide rails 6, 6 adjacent to each other are located alternately.

In addition, in the above-mentioned embodiment, the guide rail 6
Although a configuration has been described in which only the rail portion 8 and the regulating piece 10 are cut out to form the notch portion 12 for forming an air flow path, the configuration of the notch portion 12 is not limited to this. The rail 6 is divided into a plurality of pieces in the length direction, and each of the divided guide rails 6 is provided on the side wall 7 at appropriate intervals to form an air flow path, and the guide rails 6 are arranged so that the positions of the intervals are alternated. , 6... may be arranged.

Since the guide rail of the cart according to the present invention is constructed as described above, air at a predetermined temperature blown from the air intake port 4 passes through the notches 12 provided at alternate positions in the adjacent guide rails 6. Since the air flows toward the air outlet 5 while taking a detour, the food and drink placed on the tray 11 and arranged and stored on the rail portion 8 of each guide rail 6 is kept almost uniformly warm.

FIG. 3 shows another embodiment of the present invention. In this embodiment, the length of the notch 12 is gradually increased at an appropriate ratio from the air intake port 4 side to the air discharge port 5 side. By gradually reducing the air path resistance toward the outlet 5 side, the outlet 5
The structure is designed to increase the amount of circulating air on the side. Therefore, it is possible to more uniformly keep the temperature of the food and drinks that have been arranged and stored.

Although FIG. 3 shows an embodiment in which the air intake port 4 is provided at the top of the cart body 2, a cart in which the air intake port 4 is provided at the bottom of the cart body 2 and the air discharge port 5 is provided at the top of the cart body 2 may be used. , the length of the notch 12 is
What is necessary is just to structure it so that it becomes sequentially long toward the upper air discharge port 5 side of the cart main body 2.

As detailed above, according to the present invention, at least the protruding portions of the rail portions of the guide rail having the rail portions for supporting and holding the trays etc. provided on both side walls of the cart body are provided with appropriate intervals. A plurality of cutouts are provided for forming air flow paths, and
Since the guide rails are arranged so that these notches are alternately located, the air at a predetermined temperature blown into the cart flows toward the air outlet while bypassing each notch, and is pumped inside the cart body. Since it is evenly distributed, it is possible to keep all the food and drinks stored in an organized manner almost uniformly warm, and the drawbacks of conventional carts of this type are eliminated, demonstrating excellent effects.

[Brief explanation of the drawing]

Fig. 1 and Fig. 2 show an embodiment of the present invention, Fig. 1 is a longitudinal cross-sectional view of the main part, Fig. 2 is a cross-sectional view along the line A-A in Fig. 1, and Fig. 3 is a cross-sectional view of the main part. FIG. 4 is a longitudinal sectional view of the main part of another embodiment, and FIG. 4 is a longitudinal sectional view of the main part of the conventional example. In the figure, 1 is a cart, 2 is a cart body, 3 is an end plate, 4 is an air intake port, 5 is an air discharge port, 6 is a guide rail, 7 is a side wall, 8 is a rail part, 9 is a support piece, and 9a is a mounting 10 is a regulating piece, 11 is a tray, and 12 is a notch.

Claims (1)

[Scope of utility model registration request] It is equipped with a multi-stage guide rail for organizing and storing food and drinks placed on a tray, etc., and has an air intake port and an air discharge port, and by circulating air at a predetermined temperature inside, In a cart configured to keep stored food and drink at a predetermined temperature, at least a protruding portion such as a rail portion of each guide rail is provided with a cutout portion at an appropriate interval to form an air flow path; A guide rail for a cart, characterized in that each guide rail is arranged so that these notches are positioned alternately.